package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemBaseAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {


    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> queryWrapper = new QueryWrapper<>();
        if(!StringUtils.isEmpty(key)){
            queryWrapper.eq("attr_group_id", key).or().like("attr_group_name", key);
        }
        if(catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper
            );
            return new PageUtils(page);
        }else{
            queryWrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(
                    new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper
            );
            return new PageUtils(page);
        }
    }

    /**
     * @Description: 查询和三级分类所有相关的分组，并且每个分组中都有相关的属性
     * @param null
     * @author  houChen
     * @date  2021/10/7 15:34
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrs(Long catelogId) {

        List<AttrGroupEntity> attrGroups = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<AttrGroupWithAttrsVo> collect = attrGroups.stream().map(attrGroupEntity -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(attrGroupEntity, attrGroupWithAttrsVo);
            List<AttrEntity> attrRelation = attrService.getAttrRelation(attrGroupWithAttrsVo.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(attrRelation);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());
        return collect;
    }


    @Override
    public List<SpuItemBaseAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        //查询当前spu下的所有属性分组信息，以及属性分组下的所有属性和属性value
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SpuItemBaseAttrGroupVo> baseAttrGroupVos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return baseAttrGroupVos;
    }
}